#include <iostream>
#include <string>
using namespace std;
int main()
{
  string ans;
  string s;
  cin>>s;
  for(int i=0;i<s.size();i++){
    if(s[i]>='a'&&s[i]<='w'){
      ans+=(char)s[i]+3;
    }
    else if(s[i]=='x')ans+="a";
    else if(s[i]=='y')ans+="b";
    else if(s[i]=='z')ans+="c";
  }
  cout<<ans<<endl;
  return 0;
}
